•
••
• Adjusting the first arm
If the first arm also needs to be adjusted:
– Adjusting the friction (for small corrections - picture A)
1 Close the arm scissors arm; remove the plastic co-ordinator
covers. This must be done carefully to avoid breaking the
covers themselves.
2 Using a 2.5mm hexagon wrench, loosen the dowel (1).
3 Using two 13 wrenches, adjust the frictioning mechanism by
rotating one of the wrenches ¼ of a turn each time.
4 When you have finished the adjustment, tighten the
previously loosened dowel and reassemble the plastic covers
– Adjusting the spring (picture B)
If adjustment of the friction is not enough, you can adjust the
spring to optimise the balance:
1. Put the arm in a horizontal position; remove the plastic co-
ordinator covers. This must be done carefully to avoid
breaking the covers themselves.
2. Insert a 6mm hexagon wrench (about 200mm long –
contained in the kit P/N 6661209900). This wrench must
rotate clockwise if the arm tends to go down compared to
the release position; anticlockwise if it tends to go up.
3. When you have finished the adjustment, reposition the
plastic covers
Ø13
A
B
2
1
2
1
Figure 7-4
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